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As Tuesday dawned inhabitants of the planet's dirtiest urban center were faced with exposed to extremely polluted air that fell into the "critical" level.

Extremely High Air Quality Levels

Various sections of the capital showed an air quality index above 500, which represents ten times the recommended threshold recommended by the WHO.

Particular areas, readings of toxic particulate matter hit highs of eighteen hundred, amounting to 15-20x higher than healthy limits.

Firecracker Prohibition and New Policy Shifts

Since 2020, the government had enforced a comprehensive restriction on the distribution and bursting of fireworks during Diwali due to their major role to the hazardous haze that engulfs the capital as the cold season sets in.

Nevertheless earlier this year, the newly elected local administration appealed to the judicial authority to request a relaxation of the restrictions.

Officials advocated for allowing "green crackers" – which have been doubted by environmentalists as being only about 30% reduced emissions – as a balance between "heritage and environment".

Court Decision and Reality

Much to the frustration of public health and environmental advocates, the court complied with the proposal, stipulating that green firecrackers could be used during specific time windows throughout the Diwali.

During the celebrations, there was considerable disregard of the designated hours across the metropolis, with insufficient regulation regarding whether the firecrackers being used were actually the more environmentally friendly type.

Many monitoring devices throughout the capital registered pollution spiking around the night hours to some of the worst measurements seen during the festival in at least recent memory.

Cross-Border Effects

Extensive ignition of fireworks during the celebrations also initiated a blame game with adjacent the neighboring country, with officials in Pakistan's Punjab pointing to declining atmospheric conditions in the city of Lahore on hazardous particles originating in India following the festivities.

Long-Standing Pollution Crisis

Alarmingly severe readings of atmospheric toxins in Delhi have persisted as a significant problem for fifteen-plus years, with the condition showing no improvement.

During Diwali, the concentration of dangerous particles in the air has been found to shoot up to significantly exceeding the peak levels ever recorded in the Chinese city, which was once regarded as the world's most polluted metropolis.

Various Contamination Sources

This crisis in Delhi is caused by a mix of different contributors including heavy vehicle emissions, dust, development work, waste incineration and haze from agricultural fires in adjacent areas of neighboring agricultural zones.

Within these states, rural residents routinely burn crop residue to clear them quickly, producing toxic pollution that remains stagnant over the metropolitan area as winter air descends.

Medical and Financial Consequences

Public health and economic toll on the approximately 33 million residents residing in the metropolitan zone is significant, according to multiple investigations.

These hazardous conditions leads to high levels of nervous system, cardiovascular and breathing disorders, and can potentially cause malignancies.

The pollution is estimated to be accounting for approximately 10k early fatalities annually in the city.